A large international study questions the conventional wisdom that most people should cut back on salt, suggesting that the amount most folks consume is OK for heart health - and too little may be as bad as too much. The findings came under immediate attack by other scientists.

The Ebola virus has killed more than 700 people in Africa and could have catastrophic consequences if allowed to spread, world health officials say. So why would anyone allow infected Americans to come to Atlanta?

An American doctor infected with the Ebola virus in Africa arrived in Atlanta for treatment Saturday, landing at a military base, then being whisked away to one of the most sophisticated hospital isolation units in the country, officials say.

An American doctor infected with the deadly Ebola disease received intensive treatment Sunday in West Africa and was in stable condition, talking to his medical team and working on his computer, a spokeswoman for an aid group said.

The United States Supreme Court’s Hobby Lobby ruling has started a battle over birth control. Senate Democrats are working to make sure women have access to contraceptives no matter what. Senate Republicans have already rejected one new proposed law. A local mother, who’s the Executive Director of Portland’s Planned Parenthood, believes women’s health care is now caught in the middle of a political fight.

Are you tired? Do you feel that way a lot? Chances are, it's not just lack of sleep. Things you might not even think of are zapping your energy mentally and physically. Here are five reasons you're tired and ways to get your energy back.

As the U.S. tries to phase out a polluting refrigerant that is used in millions of air conditioners across the country, unapproved coolant is popping up on the market - with potentially dangerous consequences.